1.Take a bowl add besan flour,red chilli powder,ajwain,salt,coriander leaves,baking soda,ginger garlic paste and mix well with water.2.Prepare a smooth paste,now add fish pieces and coat well with the batter evenly.3.Drop them in hot oil and deep fry till nice golden colour.Transfer into a paper napkin and serve hot.(We can use bread crumbs,sabudana,sesame seeds for crunchyness)